Side-wall tuyere



Oct. 28, 1930. SFIERLMQG 1,779,861

SIDE WALL TUYRE Filed Dec. 8, 1928 2 Sheets-.Smet 1 Jacob Spr/i/g' WITNESS. INVENTOR SIDE WALL TUYRE Filed Dc. 8, 1928 2 Sheets-Sheet 2 ATTORNEY Patented `Oct. 28, 1930 Y JACOB SPEBLING, or Meerane, rENNs'YLvANIA, ./.issrernon ToWEsTINGHoUsn ELEC-1 'mrc a MANnrACrnnrne COMPANY, a Cnnronafrron er rn'NN'sYLveNIA 1 sinn- WALL TUYRE Application filed December 8, 1928. lSerial No. 324,770.

y 1 My invention relates to Stoker r'ired turfK naces and particularly to apparatus of.' this character in which tuyre structures `aredis-v posed alongawallbt the furnace for supgplying arr toythe combustion chamber -ifor y supporting conibus'tioni and for preventing the formation of clinlrernnV the furnacewall; and it has for anobject'toprevide apparatus` @of this character which isl of improved con? structionand arrangement` of parts.v 1 Y From the -view pointA of assembly, and:` .re-f pair,itlis desirable that the: y21o-called ,.side' wall tuyrenbe formed independently of theY furnaceside wall and besupported entirely*v by the stolrer'structure. In certain construe-.5 tionsheretofore knownto nie, the side wall4 tuyre has been in the forrnof an VAin cross I section, one leg of the Abeing supported by the retort sidewall and the othernieg beingsupported by an additional wall disposed .adjacent'theY Jurnace sidewall. This form is veryA expensive both for the reason that it ,is necessary to .provide the additional wall structurev for. supporting the vother '.leg of the A, and also for the reasony that the f eXtra' metalrequired to provide said other'legis notjustied'by the increased efficiency of the Stoker. Y e "n `In other .constructions known to ine, in,-r

l Wardlyfinclined `plateelike tuyeres havebeen Vthe vertical legs extend .upwardly alongthe; Jfurnace side wall. ln the latter construction,

provided which extendffrofm the upper edges of the side walls of the extreme retorts te thev furnace side wall'. Thesetuyres are n supported by angle bracket constructions,- the horiZont-allegs of which extend from there tort vside wall to the furnace ysidewall and some additional structure hask to be provided ing structure results in additional cost;

More particularly, therefore, anv object; of this invention is to provide 'asidegwall tuyre structure which is durable, easyto install and to :replace,"-'comparatively eheap to. l manufacture, and one Which-is composedof a Ininiinuninuinber of parts'. n

These and other objects are edected by inyv inventionyas kwill'loe ap.p'aren.t from the fol# lowing description 1' and claims taken in con# forming a part ci this application,'inwhich:

vnection with the acconipanying;drawings,2V

. through a Stoker tiredurnaceconstructed in' accordance. with 'my invention;V

Y IFig. 2. is an enlarged longitudinal rsectional view taken on-theline Il-'K-Il'glojf'lTi-g. 1,;cer-,j

tain of the furnace parts being omitted; Fig. 3 `is enlarged transverse sectional view on! thelinelll-10f Fig. 2, certain;

of theV partsV bein'gromitted and others being; brolen'away; Y f

Fig. l is an enlarged v Viewtalren on the yline'lV--V'oiilig land showing the rear Cffa series of tuyres icon-L structed in Vaccordance withmy invention;`

Fig. fisan enlarged detail view othe-ace of a pair vof the side wall tuyresg y Fig. Gis' an enlarged detail'view'showing longitudinal'sectionaly the rear-side of the side wall tuyres shown inFig. 5; and, v v.

e F1g-7is-a sectional vlewtalien on the line vri-vn Offriga e .f

panyingV drawing, I 'provide as side wall tuyre which isy supported entirely bythe retort side` wall andl extends 'upwardlyand to-l wards the adjacent furnace side wall to' forni a cover for the side walllair bo'X, whichlatter is delined by the retort side wall and' furnace Yside wall..L Thetuyre ,isI provided 4with* a downwardly-extending r` leg portion which lies closelyzadjacent the retort side wall. LA

According to a` preferredeinbodinient'iof my invention, which is shownf'onntheaccon clamping p plate engages the tuyre, and

means is provided for detachably'securing together the Clamping plate, vleg portion of the side wall Wall, l v

Referring now in detail lto the construction shown in the accompanying-drawing and particularly to Fig.V l, it ywill b e observed` that I have showna furnace having apair of upright side walls'l'@ and 11, an uprightl tuyre and adjacent retortside front wall 12 and a horizontally-extending wind box floor 13. The rear wall of the furnace has been' omitted as its presence on the drawing is not deemed necessary to an understanding of the present invention.

, A Stoker structure 14 extendstransversely across the furnace and divides the furnace into a combustion chamber 15 and an airV and l1, respectively; pairs of intermediate wall elements 20, 20,` 21,21 and-22;, 22 arranged in parallel relation with the marginal4 wall elements; and bottoni wall elements 23', 24, 25 and 26 extending betweeneach marginalwall element and the adjacent wallelementy of the adjoining pair -of'intermediate wall elements, and betweenthe several pairs o and the gases are driveno, which gasescriseV to form retorts 27, 28, 29 and 30'. Y

The marginal. wall elements and the intermediate wall elementsare supported by angle members; 31, 31 which latter are` supported at their ends by any suitable part of the furnace structure. Each angle4 member has a horizontal flange 32 which -extends be.- neath and supports its respectivewall element anda vertical flange 33 which extends along the side of that 'wall'element Bolts 34, 34 serve to secure thevertical flanges of the angle members to the wall elements. A strengthening bar 35 extends transversely lof the stoker structure and is secured by :bolts 36, 36 to the horizontal flanges of each of the angle members.

The marginal wall element 18 forms, in conjunction with the furnace side wall 10, a side wall air box 40; and the marginal wall element 19 forms, in conjunction Yvvithfthe furnace-side wall 11, fa side-wall, airbox 4 1. Thepairs of intermediate wall elements 20, 20,121, 21 and'22, 22" form intermediate air boxesY 43,. 44 and 45, respectively.. .All of the air boxesare in open'communication, at their lower ends, with the air chamber 16.

VVAs is common with stolters kof 'this'type, overlapping tuyere'fblocks 46, 46 are supported by each pair o fintermediate wall ele'- ments. The tuyere blocks form coversy for the intermediate air boxes and provide grate surfaces 4for supporting andsu-pplying-'air tothefuel. Ys 'r rIn operation, coalis fed from a hopper 47 and longitudinally of each retort by-primary and secondary rams 48 and 49, respectivelyf Thecoal becomes heated withinkthe retorts to the upper surface of theYV fuel bedV and are burned. lThe resulting cokeis rforced to the upper surface of the.' fuel bed and over on tol the tuyere rows, Ywhere it comes into contact with the a-ir and is burned. S

I provide a` series of tuyres 50, 50 of improved form, along each side wall of the furnace, which tuyeres supply ,air for combus-V tion to the marginal retorts, and prevent the formation of clinler on the side Walls of the furnace. The tuyeres are disposed in sideby-side relation and extend upwardly from the marginal wall elements 18 and'19 and toward the furnace side walls 10 and 11, respectively, thereby providing covers for the side wall air boxes 40 and 41.

Improved means is provided for supportingkand securing the side wall tuyeres 50, 50. Each of the tuyres is provided with a downwardly-extending legkportion 51'which lies flat against its respective marginal wall ele-- ment. The leg portion is so .formed with respect to the upper portion thereof, as to provide a shoulder or ledge portion l52 which rests uponV and is supported byl the Vupper Y edge of the marginal wall element.

Thev leg portion of eachV tuyere is firmly secured te lits respective marginal wall'element by meansfof a clamping plate 53 and bolts54,

31 by the bolts 34, 34, 'which latter also secure the marginal wall member.V j Y v VEach clampingplate 53 is provided with an upwardly-extending arcuate portiony 55 which engages and supports the underside of the tuyere. A The clamping plates are'also provided with strengthening ribs 56, 56.

. Thetuyres of each series are joinedto-y gether by a modified form of ship-lap j oint. Each of the tuyres is provided with projec tions 57,57 and recesses 58,58, which cooperate with recesses and projections,`res`pec tively, of adjacent tuyres to form the joint.

Both of the projections on anyone tuyere extend from either the front face or the rear. face of that tuyere. As shown in Fig. 7, the projections on tuyere 50a, tuyere. v50p-andv tuyere 50c are allflush with the front face, while the projections 57, 57 on tuyere 5()d and tuyere 50 extend "from the rear face. The reason for this construction is to provide a yelement to the angleI joint which permits the removal' of any one tuyere without disturbing any more than one of the adjacent tuyres. lIf eitherA tuyere 50d or tuyere 50"A is to be removed, lall that is required` is that one of the adjacent tuyeresk be first removed. Obviously, if either tuyere 50a, 50h, .or 50c requires removal, all that is required is theV removal of the bolts 34, 34

and 54, 54 and'clamping plate of that particulartuyre.' Y n f The tuyeres50, 50 arepreferably composedof ai single casting. IThe frontface, withfthe exception of the air-emittingI openings,v is formed-,smooth so-as to precludethe adher` ing. of clinken thereto;` The. rear faceof the tuyres are providedwith (see Figs. l and 6). Y v Inconstructingk the tuyres 5O,5OWith.de

pending leg Vportions which lie flushf against'y the marginal wall element-s 18 and 19 and insecuring thesetuyres to the Vmarginal wall elements by the. clamping plate bolts 3st, 34

and 54, 54; I provide air extremely simple,

form ofside wall tuyre, which does vaway withthe necessity ofproviding expensive ad. ditional supporting structure. Y myV improved form of tuyr-e can .be quickly andeasilyqinstalled'andremoved. p j

' 'While I have shown my invention inb'ut i onefform", itwill be obvious to those skilled' in tible of various changes and modifications the art that itis not so limited, but is suscepwithout departing from the spirit thereof, and I desire, therefore,that only such limitations shall be placed thereupon as are imposed by the prior art or l'as are forth in the appended claims.

specifically vset What I'claim 1s: I

1. vIn combustion apparatus, the combination of a furnace including upright walls; a stoker disposed within the furnace and Vincluding airetort' having a side wall disposed in spaced, substantially parallel relation with respect to one of the furnace Walls; a plurality of upwardly-inclined tuyres bridging e the space between said retort side wall and l' saidone furnace wall; each of said tuyres including a downwardly-extending leg portion having aside arranged closely adjacent the side of the retort side wall; and detachable meansfor rigidly securing the leg poil tions of the tuyres to the retort side-wall,

whereby the tuyres are supported independently of said one furnace side wall.

2. In combustion apparatus, the combina- Y tion of a furnace including upright walls; a stoker arranged within the furnace'and including a retort having a side wall disposed in spaced, substantiallyv parallel relationwith respect to one of the. furnace walls; a plurality 'of upwardly-inclined tuyres bridging the space between the retort side wall and said one furnace wall; each tuyre including a le portion disposed at the side of said retort side wall adjacent said furnace wall; clamping plates engaging the leg portions and detachable means for rigidly securing together'said retort side wall, leg portions and said clamping plates, whereby the tuyres are supported v by the retort and independently of furnace side wall.

3. In combustion aparatus, the combinasaid vone -tion of a furnace including upright walls; a stoker including a retort vdisposed in spaced substantially parallel relation with respect to one of the furnace walls said retort comcooling ribs 6 0; .60,-

In addition,

prisingl apair of vertically-arranged. side walls-disposedin spaced, substantially para fallel relation to oneanother and tosaid one furnace wall, bottom wallv extendingbetweenthe Vretort.,,sidewalls and a pair of angle members for supporting thev retort walls; theangle members being disposed at the two lower cornersfof'theretort and having` vertical flanges arrangedQfclosely adja-y cent theoutside'of thev retort side wall; a plurality of upwardly-inclined tuyre mem-` bers'bridging .the distance between the retort .side wall adjacent saidv one furnace wall andl ently of'said one furnace wall..

lare supported by the retort.v and independf 4. Incombustionapparatusirthe combina tion of a furnace including uprightwall-s; a.l

stokerdisposed withinLthe furnace andi includingla retort .havingf a side wall disposed inl spaced, substantially parallel v relation with res ect to one ofthe furnace 'walls' Y 7 plurality. of `upwardly--inclined tuyres bridging the space between saidy retortsidel' wall andsaidlone.furnacewall ;eachjof said tuyeres having a ledge portionrestingzupon the upper portionoflthe retort side wallfanda downwardly-extendingleg. p 'ortionhavingl a side thereof disposed` closelyy adjacenty the J lside-of the retort sidewallgand .detachable means for rigidly securingthe leg. portionsto the retort side wall, whereby .such tuyres are supported by the retortr` sidei wall andn inde;-

pen-dently of said one. furnace wall;

-51 In combustion apparatuswthe combinal, tion 'of afurnace includinga pairof upright.

side walls a m-echanicallyeoperated 4stoken disposed within -the furnace and comprising l a Vplurality of',alternately-arranged' retorts f and tuyre rows extendingfrom the front. to the rear ofthe furnace ;V 'the retort adjacent eachfurnace side wallincludingia side wall disposed in spaced, substantially: parallel-.relati-on`=with respect to such furnace-side wall, and,v forming.. in conjunction with :such fur'- nace side wall a side wallair box a plurality of'si-de walltuyres disposed in abutting ,sideby-side relation and` extending upwardly from each .,aforementioned retort yside wall. and toward-the adj ac'ent"furnace side wallto form a cover for the. respectiveside wall air boX; each of y a downwardly-projecting leg. portion disposedfadjagent the'side ofthe adjoiningrektort side wallg: anddetachable means for rig? the side wall tuyres .including idly clamping the leg portions to the retort side walls, whereby the tuyeres arefsupported by the retort side walls and'findepe'nde'ntlyV of the adjacent furnace walls: j

- 6, In combustion' apparatus, athecombination of a furnace including a pair of upright side walls; a unitary underfeed stoker structure dividing the furnace into` combustion and air chambers and,v including two man` ginal wall elements disposed, respectively,l spaced, substantially parallel .relation with the furnace side walls, pairs ofintermediate wall elements, and bottom walleleinents 4exitending between the marginal wall elements and the adjacent wall element of the adjoining pairs and between the" several pairsto forin retorts; said pairs of intermediate wall elements and each ofvsaid marginal-'wallelements in conjunction with 4the adj'acent'fure` nace side wall, defining respectivelyl a plurality of intermediate and side wall air'boxes in-cominunication 4with said Vair chamber;

tuyeres supported by the upper portions of the pairs of intermediate vwall elements and forming a cover 'for Y the intermediatev air boxes; a plurality ofside wall tuyeres-ar ranged in abutting side-by-side relation and extending upwardly from eachv marginal wall element `andinwardly toward the adj acent furnace side wall to provide covers for the side wall air boxes; each ofthe side wall tuyres including, ai downwardly-extending leg portion disposed within the side wall air box and closely adjacentV theV side of the marginal wall element; anddetachable clamping means 'for rigidly securing together the leg portions and the marginal wall elements, wherebythe side wall tuyeres 'are supported by the marginal wall elements and independ-A ently-of the furnaceside walls; 7 In combustion apparatus, the combination of a furnace including a pairof upright side walls; a unitary underfeed stoker structure dividing the furnace into combustion and air chambers and including two marginalv wall 'elements disposed, respectively, in spaced, substantially parallel relation to the furnace-side walls, pairs of `intermediate Wall elements, and bottom .wall elements extending between the marginal wall elements` and the adjacent wall elements of the adjoining pairs and betweenY the several pairs vto form retorts; vsaid pairs of intermediate wall ele-v ments and each ofL said marginal wall ele-V ments in conjunction Ywith the adjacent furnace side wall, defining respectively a plurality of intermediate andv side wall air boxes in communication with said air chamber: tuyres supported by theupper portions of the pairs of intermediate wall elements and forming a cover for the intermediate air boxes; a plurality of side wall tuyres arranged in abutting side-,by-side relation and extending upwardly from each marginal wall element and inwardly toward the ad Y i within each side wall air box and engaging the 'side wall tuyeres; and detachable means for rigidly securing together each side wall tuyre, its adjacent marginal wall element' and clamping plate, whereby the side wall Y f tuyeresare supported by themarginal wall elements and independently of side walls. j j Y j In testimony whereof, I have hereunto subscribed my name this Srdday of December, 1928. Y "n l i JACOB SBERLINGIZ,

the furnace i iso 

